KDP categories · Top KDP authors
Plastics: Amazon KDP category data
Amazon Books Best Sellers data for Plastics, updated Nov 2, 2026: median price $133, median 3 reviews, average rating 4.3 and a KDPTop opportunity score of 24/100 (highly competitive).
| Price range (middle 50%) | $68.99 – $183 |
|---|---|
| Average rating | 4.3 |
| New releases (90 days) | 3% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 5% of the parent category Chemical (57), one of the easier corners under it.
- At $133 its median price beats 99% of Books categories, leaving more margin per copy.
- Its review barrier is lower than in 94% of Books categories: the median best seller has only 3 reviews, so new books can chart with few.
Top 10 Plastics best sellers
-
Prepper's Water Purification Survival Bible: Discover the 7 Essential Skills on How to Find, Collect, Filter, Purifying and Store Water with Easy Step by Step Instructions
by Bryan Wells
- List rank#1
- Price$15.99
- Rating4.4
- Reviews8
-
Polymer Extrusion
by Chris Rauwendaal
- List rank#2
- Price-
- Rating4.4
- Reviews11
-
-
Materials Science of Polymers for Engineers 3E
by Tim A. Osswald
- List rank#4
- Price$88.20
- Rating3.8
- Reviews3
-
Handbook of Plastics Joining: A Practical Guide (Plastics Design Library)
by Michael J. Troughton
- List rank#5
- Price$206
- Rating5.0
- Reviews9
-
Life Without Plastic: The Practical Step-by-Step Guide to Avoiding Plastic to Keep Your Family and the Planet Healthy
by Jay Sinha
- List rank#6
- Price$13.29
- Rating4.6
- Reviews158
-
Plastic Matter (Elements)
by Heather Davis
- List rank#7
- Price$24.95
- Rating4.6
- Reviews8
-
Plastics Compounding and Polymer Processing: Fundamentals, Machines, Equipment, Application Technology
by Klemens Kohlgrüber
- List rank#8
- Price$239
- Reviews-
-
Polyurethane Polymers: Blends and Interpenetrating Polymer Networks
by Sabu Thomas
- List rank#9
- Price$200
- Reviews-
-
Plastic Part Design for Injection Molding 2E: An Introduction
by Robert A. Malloy
- List rank#10
- Price$102
- Rating4.6
- Reviews29
FAQ
Is Plastics a good niche for Amazon KDP?
Its KDPTop opportunity score is 24/100, which makes it highly competitive. The median best seller has 3 reviews and sells for $133.
How many reviews do you need to rank in Plastics?
The median best seller has 3 reviews, and 97% of them have fewer than 100.
What do Plastics best sellers cost?
The median price is $133; half of the best sellers are priced between $68.99 and $183.
Can new books break into Plastics?
3% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.